/**
 * File DefaultOutputFileNameCreator.java
 * ---------------------------------------------------------
 *
 * Copyright (C) 2012 David Bauske (david.bauske@googlemail.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * - The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 * - The origin of the software must not be misrepresented.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * TL;DR: As long as you clearly give me credit for this Software, you are free to use as you like, even in commercial software, but don't blame me
 * 		if it breaks something.
 */
package de.erb.erir.model;

import java.io.File;

import net.cl.util.files.FileUtils;
import de.erb.erir.model.ImageConversionWorker.OutputFileNameCreator;

/**
 * If only one file is converted, the resultting file is put into the same directory as the origin file, with a given
 * filename-suffix. If more than one files are converted, a new folder with a given name is created that contains all
 * generated images.
 *
 * @author David Bauske
 */
public class DefaultOutputFileNameCreator implements OutputFileNameCreator
{
	private String	mSuffix;
	private String	mDirectory;

	public DefaultOutputFileNameCreator(String pDirectory, String pSuffix)
	{
		mSuffix = pSuffix;
		mDirectory = pDirectory;
		if(!(mDirectory.endsWith("/") || mDirectory.endsWith("\\")))
		{
			mDirectory += '/';
		}
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public File getOutputFile(File pInput, int pTotalFileCount)
	{
		File destFile = null;
		String srcFilename = pInput.getAbsolutePath();

		if(pTotalFileCount > 1)
		{
			boolean success = true;
			String destBasePath = FileUtils.getBasePathAsString(pInput);

			File destFileDir = new File(destBasePath + mDirectory);
			if(!destFileDir.exists())
			{
				if(!destFileDir.mkdirs())
				{
					// Directory could not be created, so try to save the files in the already existant directory.
					success = false;
				}
			}

			if(success)
			{
				destFile = new File(destBasePath + mDirectory
						+ pInput.getName());
			}
		}

		if(destFile == null)
		{
			// Only one picture
			int pos = srcFilename.lastIndexOf('.');
			if(pos >= 0)
			{
				String start = srcFilename.substring(0, pos);
				String end = srcFilename.substring(pos);
				destFile = new File(start + mSuffix + end);
			}
			else
			{
				destFile = new File(srcFilename + mSuffix);
			}
		}

		return destFile;
	}
}
